Narrative:

On final approach to lgb runway 30 at 800 ft, we got a TCASII traffic aural and visual alert for an aircraft at the same altitude, 1-2 NM ahead. We found him visually (a small cessna) and queried tower about him. We were told at 500 ft on final that there was an active VFR traffic pattern to runway 25L that was over our final. This operation is completely unsafe -- an near midair collision waiting to happen. First, a 1000 ft VFR pattern over an IFR final. This one doesn't provide sufficient separation between aircraft -- especially when the VFR aircraft is 200 ft low. Second, we were never warned/notified of the existence of the VFR traffic or any potential conflict. Callback conversation with reporter revealed the following information: reporter stated that a TCASII RA was received on about a 2 mi final to runway 3O. The other aircraft was a cessna aircraft and was spotted in a left pattern to runway 25L and at the time, was crossing overhead on base. He said the controller did not seem too concerned about the operation. Reporter wished a TA was given prior to them receiving a TCASII RA.

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Original NASA ASRS Text

Title: MD80 CREW ON FINAL AT LGB TO RWY 30, AFTER SPOTTING TFC AHEAD, ARE TOLD BY THE TWR THAT THE TFC IS IN THE PATTERN FOR RWY 25L.

Narrative: ON FINAL APCH TO LGB RWY 30 AT 800 FT, WE GOT A TCASII TFC AURAL AND VISUAL ALERT FOR AN ACFT AT THE SAME ALT, 1-2 NM AHEAD. WE FOUND HIM VISUALLY (A SMALL CESSNA) AND QUERIED TWR ABOUT HIM. WE WERE TOLD AT 500 FT ON FINAL THAT THERE WAS AN ACTIVE VFR TFC PATTERN TO RWY 25L THAT WAS OVER OUR FINAL. THIS OP IS COMPLETELY UNSAFE -- AN NMAC WAITING TO HAPPEN. FIRST, A 1000 FT VFR PATTERN OVER AN IFR FINAL. THIS ONE DOESN'T PROVIDE SUFFICIENT SEPARATION BTWN ACFT -- ESPECIALLY WHEN THE VFR ACFT IS 200 FT LOW. SECOND, WE WERE NEVER WARNED/NOTIFIED OF THE EXISTENCE OF THE VFR TFC OR ANY POTENTIAL CONFLICT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT A TCASII RA WAS RECEIVED ON ABOUT A 2 MI FINAL TO RWY 3O. THE OTHER ACFT WAS A CESSNA ACFT AND WAS SPOTTED IN A L PATTERN TO RWY 25L AND AT THE TIME, WAS XING OVERHEAD ON BASE. HE SAID THE CTLR DID NOT SEEM TOO CONCERNED ABOUT THE OP. RPTR WISHED A TA WAS GIVEN PRIOR TO THEM RECEIVING A TCASII RA.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.